Adding-machine.



PATENTED FEB. 25, 1908.

0. N. MOPAR; ADDING MAGhiii-s-i. APPLICATION FILED JUNE 26,1907

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Atte's t: N WL QM4 Inventor:

PATENTED FEB. 25, 1908.

0. N. MCFARLAND. ADDING MACHINE. APPLICATION FILED JUNE 26. 1907.

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CHARLES N. M FARLAND, OF DORBANOETON, PENNSYLVANIA, ASSIGNOR TO THE ADDER MACHINE COMPANY, OF KINGSTON, PENNSYLVANIA,'A CORPOltATlON OF PENNSYL- VA N IA.

ADDING-MACHINE.

m. scarce.

Specification of Letters Patent.

Patented Feb. 25, 1 908.

Application filed June 26. 1907. serial No. 380.868-

7. '0 all whom it may concern: I

Be it known that I, CHARLES N. MoFAn- LAND, a citizen of the United States, and a resident of- Dorranceton, in the county of Luzerne and State of Pennsylvania, have invented certain new and useful Improvements in Adding-Machines, of which the following is a specification.

My invention relates to adding machines to the well known Wales adding machine.-

This machine is commonly provided with a printing mechanism mounted at the end of the device farthest from-the operator and which mechanism comprises a platen on which the paper to receive the record is mounted, means for appropriately position ing the type at the line of print in front of the platen identical and harmonious in movement with the means whereby the items to be added are enumerated in the machine, means for propelling the type toward the platen and an inkingribbon between'the typeand the paper.

' is set up The machine, in somc of its styles, is provided with means whereby thcfunction of the accumulating mechanism may temporarily beinterrupted without at the same time suspending the function of the remaining mechanism, and more particularly the printingmechanism, of the machine so that an item may be printed on the paper recording strip above referred to on which the accumulatedjitems are recorded without including such item in theseries of items accumulated,

total when these items 18 accomplished by the an elimination key or or adding it into the are added up. This use of a key called non-adding key, because the item enum;

erated is recorded but not added, and it comprises means for preventingthe movement of the numeral wheels.

The machine is also provided with a total button or key by the depression of which,

' through appropriate mechanism, 'the total which has been accumulated on the wheels,

onthe pr nting mechanism and recorded thereon.

The preciseoperation of the foregoing mechanism is not necessary to an understanding of the, invention which is the sub- Jec't matter of this application.

In using the machine provided with'the non-adding key, if this key is accidentally left depressed and it is thenattempted to take a referred to and which total on the machine the depression of the total button will cause an over rotation of each one of the numeral wheels to 9. It is not necessary to describe the intermediate mechanism by which this movei'ncnt is accomplished, but it is sufficient to say that such is the result of such movement. It is, therefore, desirable to lock the. total button against movement when the non-adding key is depressed and to keep it automatically locked until the non-adding key is restored to its original position, and such is the purpose and object of the subject matter of this application; a

in the drawings,-Fig. l is a side elevation of the parts of an adding machine embodying my invention and Fig. 2 is a similar view Show ing the same parts in a changed relation.

in the drawing, 1 is the frame of the machine on which the parts are mounted. These parts include a bank of keys arranged in denominational series, each key provided with a stem by the depression of which a stop corresponding to the numeral value of the Wheel depressed isinterposed m'thc paths of rack bars 20, one for each numeral wheel 31. These rack bars. are each provided with toothed racks 21 on their up or edges (not shown) and are supported at tiieir'front ends upon links 22 suitably pivoted and at their rear ends upon the extremities of hell crank levers 23 mounted to oscillate upon a shaft 24. The other ends of the levers 23 are pivotally connected to the printing mechanism. The rack bars 20 are adapted to mesh with pinions 30 with which the numeral wheels arc' prov-ided. These numeral wheels display in roper order onthcir edges (not shown) t e. numbers from 1 through 9 to 0 and are all mounted on acommon shaft 32,

there being one numeral wheel for each de nominational series of keys.

It will readily be understood that when the rack bars are moved forward through the actuation of the handle 40 on the main shaft 4], and the racks 21 are in mesh with the pinions 30, the extent of the rotation of the I wheels 31 is determined by the extent of the movement of the rack which in turn is governcd by the position of the key stops above is permanently controlled through a series of other stops 25 provided for thatpurpose.

At each side of the framework of the machine there are provided'bell crank levers 60' Y to t the machine.

therefore further be referred to.

Leia

pivoted at 61. One arm 62 of the lever is '67 ada ted to swing under the numeral wheel s aft 32 to. s u port-it. A laterallug 630 is provided on the side of the-key stem 63 and isadapted to engage with a plate 631 secured to the case ofthemachine in order to hold the key 64 depressed when desired.

This key 64 and its stem, when depressed, is

adapted to swing the bell crank lever 60 to move the feet or books 67 upward and thus to lift the numeral wheel shaft 32 so that the rack bars 20, if oscillated, cannot engage with the pinions 30. In ether words, the pur ose of-this, key is to interru t the function o the adding mechanism so t at while the depression of the numeral-keys above referred to will cause the registration of the corresponding numbers, on"v the, paper record strip r0- vided for that purpose, yet so long as this ey is depressed such items will not be added by That is the reason why it is called a non-adding key.

70 is the total button provided with a de pendent slotted stem 71 and adapted to swing a bell cranklever .72 pivoted at 73. The upwardly extending member 74 of the bell crank is forked at 75 to engage a pin 76 secured to or made integral with a sliding piece'77 whereby the latter is given aborizontal reciprocating movement. The function of this slide 77 is immaterial to the subject matter of this application, and will not I Mounted on the side of the slide 77 is a pin 770 and mounted on the side of the lever 66 is another pin 660.

Pivoted at 80 on the frame of the machine is a swinging trip 81 having a tail-piece 82 adapted toengage with the pin 660' and a forked head 83 adapted to engage with the pin770.1 P o a When'the arts are in the position shown in Fig. 1 and the lever 66 is normally heid back from engagement with the numeral wheel shaft by the sprin provided for that purpose, the trip 81 will rop by the force of gravity into the position shown in t'he figure and slide 77 can reciprocate i'reely. In other 7 words, the slide '77 and the total button are free to mowe just as though the trip 81 did not exist. When, however, the non addin key is depressed, and either held depresse and locked into position, as shownin Fig. 2, the pin 660 ridmg along the tailiece 82 swings the trip 81 upward against t e force of gravity and its forked head 83. then engages the pin 770 on the slide 77 so that the latter can no longer move, .conse uently the lever 72 and the total button itse are both locked against movement until the non-adding key is released and moved upwards,

ing racks! mes seams when, of course, the trip 81 swings on its pivot by the force of gravity and the slide 77 1s free to move as before. A small spring (not shown) assists by its tension the movement of the tri 81. By this construction, if the operator has depressed the non-adding key and accidentally left it de ressed, and starts to take a-total, as soon as. e attempts to depress the totalbutton, he 'willfind it locked against movement and upon "investi ation' will, of course, ascertain the cause t ereof and release the non-adding key and return it to its initial position.

' Whatlclaim as new is I 1. In an adding machine, comprising numeral wheels, a non-'adding key, means operated by the depression of said key for holding the numeral wheels inoperative, and a total key, the combination therewith of means for locking the total keywhile the non-adding key is depressed, comprising a connection intermediate the total key and the numeral wheels, and means actuated by the de ression of the non-adding key to prevent the operation of said connection.

2. In an adding machine, comprising numeral wheels, a non-adding key, means 0 erated by the de ression of said keyfor hol ing the numeral w eels inoperative, and a total key, the combination therewith of means for locking the total key While the non-adding key is depressed, comprising a connection intermediate the total key and the numeral wheels and a stop brought into osition by the de ression of the non-adding ey to prevent t e movement of said connection.

3. In an adding machine, comprising numeral wheels rovided with pinions, actuating racks mes ing directly therewith, a nonadding key,'and means actuated by the depression of the nonadding. key for disengagmg the pinions from the racks, the combination ,therewith of a total key, a slide moved thereby and means' for locking the slide against movement brought into operation by the depression of the non-adding key.

4. In an adding machine, comprising numeral wheels ing directly therewith, a nonadding key, and means operated by the depression of the non-adding key for disengaglng the pinions from the racks, the combination therewith of a total key, a slide moved thereby, means for locking the slide against movement brought into operation by the depression of the non-adding key and com ismg a lever adapted to be moved by said ey, a pin mounted thereon, and a 'connection-be tween the pin and the slide.

5'. In an adding machine, comprising nu- 1provided with pinions, actuatmeral wheels provided with pinions, actuating raeksmeshingtherewith, a nonadding key which when depressed is adapted to keep the 1pinions out or mesh with the racks, a tota key'and a slide moved thereby, means vbrought into operation by the depression of trip having a tail piece and prising a noneadding key, a total a non-adding key,

the non-adding key and comprising a lever adapted to be moved by said key, a pin mounted thereon, a pinon the slide and a trip adapted to engage with both pins.

6. In an adding machine, comprising numeral wheels 'rovided with pinions, actuating racks .mes ing therewith, a non-adding key whichwhen depressed isadapted' to keep the pinions out of mesh with the racks, a total key and a slide moved thereby, a tri normally out of en agement with'thevsli e and means actuated bythe depression of the nonadding key to bring it into engagement therewith. r v

7. In a machine of the class described, com rising a non-adding key, a total key and a sli e moving in harmony with the latter, a trip ke t normally out of engagement with the slid by the force of gravity and brought into engagement therewith bythe movement of thenon-adding key;

8. In amaohine of the class described,comprising a non-adding slide moving in harmony with the latter, a a forked head, the former adapted to engage with a connection leading .tothe non-adding key and the latter with a connection leadin to the total key.

9. In a machine of the cIass described, comkey and, a

slide moving in harmony with'thelatter, a

trip adapted to engage at one end with a connection eading to the non-adding key and at the other end with a connection leading to the total key.

i 10. In a machine of the class described, comprising numeral wheels provided with pinions, actuating racks meshing directly therewith, a non-adding key, a lever. connected thereto to hold the pinion out of engagement with the racks, a total key, and a slide moving in harmony therewith, the combination therewith of means for locking the slide against movement brought into opera- -the lever. 11. In a machine of the class described,

comprising numeral wheels provided withpinions,actuating racks meshing therewith,

to hold the pinions out of engagement with the racks, a total key and a slide moving in harmony therewith} a pin on the lever, a in, on the slide and an operating connection etween them.

12. In a machine of the class described, comprising numeral wheels provided with pinions, actuating racks meshing therewith, a non-adding key, a lever connected thereto to hold the pinions out of engagement with the racks, a total key and a slide moving in harmony therewith, a trip intermediate the lever and the slide and means for automatickey, a total key and a a lever connected thereto harmony ally actuating it to lock the slide when the lever is actuated.

18. In' a machine of the class described, comprising numeral wheels provided with pinions, actuating racks meshing therewith, a non adding key, a lever connected thereto to hold the pinions out of en a ement with the racks, a total key and a s i e moving in harmony therewith, a pin on the lever and a pin on the slide, anda trip normally out of contact with both, but ada ted to be brou ht into engagement with t e pin on the islidefiw its engagement with the pin on the ever.

14. In a machine of the classdescribed, comprising numeral wheels providedwith pinions, actuating'racks meshing therewith, a non-adding ke a lever connected thereto to hold the pinions out of en a ement with the racks, a total key and a s i e moving in harmony therewith, a pin on the lever and a pin on the slide, and a'trip weighted'to normally remain out of engagement with the pin on the slide, a I v v 15. In a machine of the class described, comprising vnumeral wheels provided with pinions, actuating racks meshing therewith, a non-adding key, a lever connected thereto to hold the pinions out of en agement with the racks, a total key and a s ide moving in harmony therewith, a pin on the lever and a pin on the slide, and a trip weighted to normally remain out of engagement with the pin on the slide and adapted to be lifted to engage said pin when the pin on the lever is brought into contact therewith.

16. In a machine of the class described,

comprising numeral wheels provided with pinions, actuating racks meshing therewith, a non adding key, a lever. connected thereto to hold the pinions out of en agement with the racks, a total key and a slide moving in harmony therewith, a trip intermediate the lever and the slide and weighted to normally remain out of engagement with the slide and automatically to be lifted by the depression of the non-adding key.

17. In a machine of the class described,

comprising numeral wheels provided with pinions, actuating racks meshing therewith, a non-adding key, a lever connected thereto tohold the pinions out of enga ement with the racks, a total key and a s i e moving in therewith, a trip intermediate the lever and the slide and weighted to normally remain out-of engagement with the slide and automatically to be brought into engagement therewith by the movement ofthe lever brought about by the depression of the non-adding key.

18. In a machine of' the class described, comprising numeral wheels provided with inions,. actuatin'gracks meshing therewit a non-adding key, a lever connected'thereto to pin on the slide; and a trip Weighted and uneeopiee 1907, at the horough of Dorrenceton, in the county of Luzerne and State of Penney Vania.

hold the pinions out of engagement withthe racks, a total key and a slide moving in "harmony therewith, a pin on the lever and a CHARLES N. MCFARLAND. a der tension to. normally remain out of en- Vitnesses:

gegefment with the pin on the slide. 7 A. L. WILLIAMS,

' itness my hand this 24th day-0f .June I P. L. DRUM. 

